ABSTRACT
A 24-year-old woman presented to the hospital with lower abdominal pain and vomiting. She reported that the symptoms had developed suddenly, approximately 45-min earlier. She had felt well earlier in the day and denied any other symptoms. She had eaten some toast for breakfast and nothing since. She had not experienced any diarrhoea and had no contacts with similar symptoms. Her past medical history included gastro-oesophageal reflux disease and a recent diagnosis of pulmonary tuberculosis, for which she was being treated currently. Her regular medications included: isoniazid, rifampin, pyrazinamide, omeprazole and the combined oral contraceptive pill. She worked as a salesperson and did not smoke, drink alcohol or take recreational drugs.
